Art of heel attaching



Nov. 3; 1925.

' J. B. HADAWAY ART OF HEEL ATTACHIfiG Filed Jaln. v, 1925 INVENTUR.

Patented Nov. 3, 1925 umran' sT TEfsrA'TE eel-"ice.

JOHN B. HADAWAY, or swaurscorzr, msacnosms'assrenos. zro ommn anon l MACHINERY P A'IERS JERSEY.

To all whom it may 05mm.-

Be it known that'I, JOHN B. HADAWAY,

a citizen of the United States,

residing at Swampscott, in the county of Essex and 5 Commonwealth of Massachusetts, have invented certain Im rovements in the Art of Heel Attaching, 0 which the following description, in connection with the accompanying drawings, is a specification, hke

'reference characters on the drawings indicating like parts in the several fi res.

This invention relates to the art of heel attaching. In one aspect, the invention aims to provide a method ofproducmg a tlght 15 joint between the base and top sections of I a two-section heel. In .another aspect, the invention consists in an improved two-section heel having tightly jointed base and top sections.

According to the invention method is, provided which overcomes a dlfliculty some- I of' the attaching face of the heel section.

This shrinkage cannot be accurately predicted' nor exactly controlled because it varice with the composition of the compound of which the heel section is made, the shape of the heel section, and the characteristics of. the nail anchoring insert, when one is used. When such a heel section is attached to a heel base presenting-a flat surface an openin or crac tion 0 the top section and base. This shrinkage effect is particularly in some types of that class 0 rubber heels which have vulcanized into their attaching faces a stiffening or nail anchoring element of material which is harder than the body of the heel and is less in area than the attaching face of the heel. In respect to such rubber top sections the shrinkage of the rub ber sometimes produces a decided offset or depression in the breast end of the attaching face of the vulcanized heel section, and when the heel is attached a crack remains across the breast which it is impossible to close by any of the methods of heel attaching heretofore known.

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a coaro'aanon or nzw In carrying invention a rotuberantportion, of sufiicient heightgto fil any space ,or depression in the attaching face of t e vulcanized to section which may be created by shri e is formed upon the outer face of, a bee fill any deression or space which may ed ,;of the heel when the two sections are combined-and attached to a shoe. In this manner the efl'ect of shrinkage of the vulcanized top section is the existence of any crack or opening at the joint between the two sections of the heel after attachment to the shoe is concerned. It thus becomes a comparatively simple mat! 'ter to overcome the detrimental effect of the variable shrinkage factor and to produce invariably a tight edge joint.' The two -hee1 sections'may be combined, in register with each other, and attached as a ,unit to a shoe, or the base section may be attached to the shoe and the top section then be registered with the base either case being that the two sections are altitached, in register with each other, tothe S 06, i

From another viewpoint a composite heel is provided which inc udes a to section of vulcanized, resilient material wit a shrunken breast end, in combination with a base section having upon the breast end of its outer face a protuberant portion of sufiicientheight to fill the space at the breast end of the attaching face of the to section created by shrinkage. The heel is evoid of cracks or openings at itsbreast when'alF tached to a shoe, two heel sectionsalways being insured.

Other features and advanta es of the invention will be understood and ap reciated from reading the following detaile tion of a preferred 'manner -of method and one embodiment of the heel itself, in connection-with the accompanying drawings, in which C Fig. 1 is a perspective view of a vulcanized rubber heel top section, viewed from the attaching face side and'showi a space or depression created at the breast end of the attaching face by shrinkage Fig. 2-is a perspective view of a heelbase section prepared. in accordance with the present invention; and

out the'ilnethOd of the present exist at the f nullified in so far as and attached; the result in i a tight joint between the e5 descri practising e .such shrinkage as it specimens of top sections. Th1s' is' pracentirely satisfactory Fi 3 illustrates a composite two-section.

heel 1n which the top and base sections are co bined in register with eachother and attached toa shoe.

In carrying out the method of the present invention a heel base: section 10 is prepared by forming upon its outer faceat its breast end a protuberant portion 12 which isso located as to fill any depression or space, such as that shown at 14, at the breast ticable and produces results because the 'top sectlon 16 1s made of rubber or similar. rather soft, material and is capable of yielding sufliciently to ac-- commodate the protuberant portion 12 even 7 if the said portion is higher than may be necessary to close the space 14 in the particular top section 16 with which the base is to be combined.

The particular heel top section ,16 herein illustrated is made of vulcanized rubber or equivalent, resilient material and has-vulcanized into its attaching face an element '18 of material which'is harder than the body of" the heel and less in area than the attaching face of the heel. The. element 18 may be made of wood or any other material suitable for anchoring the attachin nails, one of which is shown'at 20, and aii ing in the production' of a permanently tight joint around the edges of the heel.

Thebreast end of the top section 16 herein shown is shrunken to such an extent that the depression or space 14, in front of the element 18, is quite apparent and would create an unsightly crack or opening if the said top section were attached to an unprepared base haying a flat outer-face.

a The base 10, prepared as above described, and the top section116 may be combined, in register with each other, and attached as a unit to attached ,to the shoe and the top section then be registered with the base and at- -tached,-the result in either case being that the two sections are attached, .in register the shoe 22, as shown in Fig. 3;- or the prepared base section may first be When the two heel sections are registered with each other, as shown, and nailed down I tightly nponthe, shoe the joint 24, at the breastof the heel certainty;

is tightly andpermanently closed and devoid of cracks oropenings, a very desirable condition which it has Y heretofore not been possible to secure with Havingdescribed the invention, what is claimed as new and desired-to be secured 7 by Letters Patent Y 1. That method of producing a tight edge joint between a heel top section made of material subject to shrinkage and a heel base section which consists in forming upon the outer face of the heel base section a rotuberant portion of suflicient height to ll the space in the attaching face of the top section created by shrinkage, and at- ,with each other, to the shoe.

'taching the top and base sections, in register with each other, to a shoe. v

2. That method of producing a, tight breast edge joint between a vulcanized heel top section and a base section which consists in forming upon the outer face of $5 the heel base section at its breast end a rotuberant portion of sufiicient "height to 11 the space at the breast end of the attaching face of the top section created by shrinkage, applying the top and base sections, in register wlth each other, to a shoe,

and attaching both sections to the shoe.

3. That method of producing a tight breast edge joint between a vulcanized heel top section and a base section which con- 5 sists 'in forming upon the outer face of theheel base section at its breast end a protuberant portion of sufiicient height to HP any space at the breast end of the attaching face of the top section created by shrinkage, combining the top and base sections, in register with each other, applying the combined top and base sections as a unit to' ahshoe, and attaching both sections to the S oe. t,

4. A; composite heel comprising a top section of vulcanized, resilient material with a shrunken breast end, and a base section having upon the breast end of its outer face a protuberant portion of sufiicient height to 1 fill .the ace at the breast end of the attachin'g ace of the top section created by shrinka e, said to and base sections being attache together 1n register with each other to provide a heel devold of cracks or openings at its breast.

In testimony whereof I have signed my name to this specification.

' Jorms. HADAWAY. 

